METHOD FOR DAMPING VIBRATIONS OF TRANSPORT EG TANKS Russian patent published in 2011 - IPC B60G11/64 F16F9/06 

FIELD: transport.

SUBSTANCE: invention relates to machine building. Method for tank vibrations damping includes "shock-absorber compression" operation during which hydraulic fluid is pressed out from the bottom end through forward stroke speed control valves into hydraulic rod-end of shock-absorber. In "return" operation hydraulic fluid is pressed out from the rod end through back stroke speed control valve into hydraulic bottom end of the shock-absorber. Difference in volumes of bottom and rod ends of shock-absorber is compensated by moving dividing piston which compresses gas in pneumatic cell during forward stroke and lowers pressure in pneumatic cell during back stroke. Pneumatic cell is divided by one rigid partition into two pneumatic cells: one with variable volume and the other with constant volume. During forward stroke of shock-absorber, gas is compressed in pneumatic cell with variable volume and is pressed out into pneumatic cell with constant volume through forward stroke air-flow restrictor. During back stroke of shock-absorber, volume of variable-volume pneumatic cell is increased, and pressure difference is created which difference is taken up by shock-absorber rod. Additional resistances of forward and back strokes which are proportional to shock-absorber rod movement speed and created by pneumatic cells are summed up with primary hydraulic pressures on the rod, and mechanical energy of vibrations is converted into heat dissipated into environment.

EFFECT: higher reliability of shock-absorber.

3 dwg